CN213278319U

CN213278319U - Novel battery pack small module structure

Info

Publication number: CN213278319U
Application number: CN202022086650.6U
Authority: CN
Inventors: 曹键; 张保立
Original assignee: Shanghai Nanku New Energy Technology Co ltd
Current assignee: Shanghai Nanku New Energy Technology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-05-25
Anticipated expiration: 2030-09-21

Abstract

The utility model provides a novel small module structure of battery pack, which comprises two battery cell supports which have the same structure and are connected in a folding way, wherein the battery cell supports are provided with a plurality of battery cell cavities, and battery cells which are arranged according to the requirements of positive and negative electrodes are arranged in the battery cell cavities; the two PCB boards are the same and symmetrically distributed, and are respectively fixed on two sides of the two cell supports, which are separated from each other; the battery comprises a plurality of metal wires which are welded on each PCB and connected with battery cell electrodes, and a positive metal sheet and a negative metal sheet which are used as the connection parts of a total circuit, wherein the positive metal sheet is connected with the PCB through the metal wires, and the negative metal sheet is connected with the PCB through the metal wires; the utility model has the advantages of reasonable design, simple manufacture and convenient installation, and effectively reduces the volume of the battery pack by setting the collecting line terminals on the PCB and replacing the bus bar and the voltage collecting plate with the PCB; effectively improving the problems of complex battery pack assembly process and low acquisition and connection error tendency.

Description

Novel battery pack small module structure

Technical Field

The utility model relates to a new forms of energy technical field especially relates to a simple and convenient light and handy novel battery package small module structure.

Background

At present, the new energy industry is developed rapidly, small-sized battery packs are used as cores of the development of industries such as household energy storage equipment, portable medical equipment, electric bicycles, electric motorcycles and the like, all performances of power battery packs are paid sufficient attention, and especially the structural mode, the safety mode and the occupied volume of the battery packs are also paid extensive attention. The reasonable structure mode of the battery pack can fully reduce the space of the battery pack under the condition of ensuring safety, thereby greatly improving the usability of the battery pack. Whether the design of the battery pack module is reasonable or not becomes a key point for overcoming the requirement of the battery pack industry; the existing battery pack has the following defects:

1. the bus board and the collecting board (or collecting line) in the small battery pack module are independent from each other, and the inside of the module is connected with the bus board through butt welding, ultrasonic (laser) welding or aluminum wire welding (the same as the Tesla module welding process); then, the collection of each string is connected by screws or is welded on the bus board by a PCB or laser in a separate processing line, so that the process is complex and the labor hour is increased.

2. Connecting collection lines on the bus board easily causes connection errors, so that safety problems are caused;

3. the acquisition lines or the acquisition boards occupy more space, and the capacity has to be reduced for small equipment with limited space.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel little modular structure of battery package, the above-mentioned technical problem of effectual solution to the not enough of above-mentioned prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel small module structure of battery pack, which comprises two battery cell supports which have the same structure and are connected in a folding way, wherein the battery cell supports are provided with a plurality of battery cell cavities, and battery cells which are arranged according to the requirements of positive and negative electrodes are arranged in the battery cell cavities;

the two PCB boards are the same and symmetrically distributed, and are respectively fixed on two sides of the two cell supports, which are separated from each other;

the battery comprises a plurality of metal wires welded on each PCB and connected with battery cell electrodes, and a positive metal sheet and a negative metal sheet which are used as the joint of a main circuit, wherein the positive metal sheet is connected with the PCB through the metal wires, and the negative metal sheet is connected with the PCB through the metal wires.

Preferably, the PCB is provided with a plurality of collecting line terminals and a plurality of voltage collecting points, a plurality of test pins are arranged in the collecting line terminals, and the voltage collecting points are connected with the corresponding test pins in the collecting line terminals.

Preferably, each voltage collecting point is a nickel-plated copper-dipped sheet.

Preferably, the PCB is connected to the cell support at the corresponding side by dispensing.

Preferably, the metal wire is an aluminum wire; the aluminum wire is low in price and good in conductivity.

Preferably, the positive electrode metal sheet and the negative electrode metal sheet are fixed on two sides of one of the cell supports through screws.

The utility model has the advantages that:

1. the problems that the battery pack assembly process is complex and the collection connection is easy to be wrong are effectively solved;

2. the collecting line terminals are arranged on the PCB, and the bus board and the voltage collecting board are replaced by the PCB, so that the volume of the battery pack is effectively reduced;

3. the utility model has the advantages of reasonable design, make simple, simple to operate.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is an exploded schematic view of an embodiment of the present invention;

fig. 3 is a schematic front structural diagram of an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to fig. 3, a novel battery pack small module structure includes two battery cell supports 1 having the same structure and connected in a folding manner, the battery cell support 1 is provided with a plurality of battery cell cavities 11, battery cells 2 arranged according to the requirements of positive and negative electrodes are arranged in the battery cell cavities 11, and the battery cells 2 are fixed to the battery cell supports 1 by glue; the two PCB boards 3 are fixed on two sides of the two cell supports 1 which are separated from each other in a dispensing mode; then welding an aluminum wire 4 on the anode and cathode of the battery core 2 and nickel-plated copper-dipped sheets 7 on the PCB 3, wherein each nickel-plated copper-dipped sheet 7 is connected with a corresponding test pin in a collection wire terminal 8, and an anode metal sheet 6 and a cathode metal sheet 5 at the connection part of the module main circuit are connected with the PCB 3 through the aluminum wire 4; the positive metal sheet 6 and the negative metal sheet 5 are connected with the module or the module is connected with an electrical element by virtue of screws, and the PCB 3 is provided with the acquisition line terminal 8, so that the problem of wrong assembly of the acquisition line is solved, and the device is safe and reliable.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a novel little modular structure of battery package which characterized in that: the battery cell support is provided with a plurality of battery cell cavities, and battery cells arranged according to the requirements of positive and negative electrodes are arranged in the battery cell cavities;

2. The novel battery pack small module structure according to claim 1, characterized in that: the PCB is provided with a plurality of collecting line terminals and a plurality of voltage collecting points, a plurality of testing needles are arranged in the collecting line terminals, and the voltage collecting points are connected with the corresponding testing needles in the collecting line terminals.

3. The novel battery pack small module structure according to claim 2, characterized in that: each voltage collecting point is a nickel-plated copper-dipped sheet.

4. The novel battery pack small module structure according to claim 1, characterized in that: the PCB is connected to the battery cell support on the corresponding side through dispensing.

5. The novel battery pack small module structure according to claim 1, characterized in that: the metal wire is an aluminum wire.

6. The novel battery pack small module structure according to claim 1, characterized in that: the positive metal sheet and the negative metal sheet are fixed on two sides of one of the battery cell supports through screws.